In this four-part adventure and exploration series we travel around the UK in a historic sailing ship, visiting the secret islands of the British Isles, to discover the untold stories of the fascinating history, cultures and wildlife that they hold, including their links to Viking and Nordic heritage. From 5000-year-old ruins to fascinating living cultures with Viking ancestry, which are found across the 6000 islands that form the United Kingdom, we unveil their mystery, natural history and archaeology.